公开(公告)号：US09146288B2

公开(公告)日：2015-09-29

申请号：US13755272

申请日：2013-01-31

申请人： GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC

发明人： Haoyang Xing ,  Yu Liu ,  Anmou Liao ,  Kai Wang ,  Chenxing Zhao ,  Qibin Peng

IPC分类号： G01V3/00 ,  G01R33/36 ,  G01R33/341

CPC分类号： G01R33/3614 ,  G01R33/341 ,  G01R33/3664

摘要： A method for implementing a switching between a body coil and a head coil in a nuclear magnetic resonance imaging system comprising the body coil, the head coil and a power amplifier component, wherein the power amplifier component comprises sets of power amplifiers, each set of power amplifiers comprising channels of power amplifiers combined by a Wilkinson circuit, a combiner configured to combine signals from the sets of power amplifiers and to connect the sets of power amplifiers to the body coil, a first switching device comprising a first terminal configured to be grounded, a second switching device connected in series in a resistor branch of the Wilkinson circuit, and a ¼ wavelength transformation transmission line located between the second switching device and the head coil, the method comprising connecting the power amplifier component to the body coil or the head coil by setting states of both switching devices.

摘要翻译： 一种用于在包括体线圈，头线圈和功率放大器部件的核磁共振成像系统中实现体线圈和头线圈之间的切换的方法，其中功率放大器部件包括功率放大器组，每组功率 放大器，包括由Wilkinson电路组合的功率放大器的通道，组合器，其被配置为组合来自所述功率放大器组的信号并将所述功率放大器组连接到所述体线圈;第一开关器件，包括被配置为接地的第一端子， 在威尔金森电路的电阻分支中串联连接的第二开关器件和位于第二开关器件与头部线圈之间的1/4波长变换传输线，该方法包括将功率放大器部件连接到体线圈或头部线圈 通过设置两个开关装置的状态。

公开(公告)号：US09071228B2

公开(公告)日：2015-06-30

申请号：US13870522

申请日：2013-04-25

申请人： GE Medical Systems Global Technology Company, LLC

发明人： Yu Liu ,  Qibin Peng ,  Anmou Liao ,  Haoyang Xing ,  Chenxing Zhao ,  Hai Huang

IPC分类号： H03H5/00 ,  H03H7/42 ,  H01P5/10

CPC分类号： H03H7/42 ,  H01P5/10

摘要： Embodiments of the present invention relate to the technical field of RF circuits, and in particular, to a balun. In an embodiment of the present invention, a balun is provided which comprises at least two coaxial cables, each of which is wound into at least one loop, and the inner and outer conductors of one end of all coaxial cables are connected respectively to each other and the inner and outer conductors of the other end are also connected to each other. The novel balun according to the embodiments of the present invention has a small size but a large power capacity and low cost, and can be used in a magnetic field environment.

摘要翻译： 本发明的实施例涉及RF电路的技术领域，特别是涉及一种平衡 - 不平衡转换器。 在本发明的一个实施例中，提供了一种平衡 - 不平衡转换器，其包括至少两根同轴电缆，每条同轴电缆都被卷绕到至少一个环中，并且所有同轴电缆的一端的内外导体分别彼此连接 并且另一端的内外导体也彼此连接。 根据本发明实施例的新型平衡 - 不平衡转换器具有体积小但功率大且成本低的特点，可用于磁场环境。

公开(公告)号：US20130193965A1

公开(公告)日：2013-08-01

申请号：US13755272

申请日：2013-01-31

申请人： GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC

发明人： Haoyang Xing ,  Yu Liu ,  Anmou Liao ,  Kai Wang ,  Chenxing Zhao ,  Qibin Peng

IPC分类号： G01R33/36 ,  G01R33/341

CPC分类号： G01R33/3614 ,  G01R33/341 ,  G01R33/3664

摘要： A method for implementing a switching between a body coil and a head coil in a nuclear magnetic resonance imaging system comprising the body coil, the head coil and a power amplifier component, wherein the power amplifier component comprises sets of power amplifiers, each set of power amplifiers comprising channels of power amplifiers combined by a Wilkinson circuit, a combiner configured to combine signals from the sets of power amplifiers and to connect the sets of power amplifiers to the body coil, a first switching device comprising a first terminal configured to be grounded, a second switching device connected in series in a resistor branch of the Wilkinson circuit, and a ¼ wavelength transformation transmission line located between the second switching device and the head coil, the method comprising connecting the power amplifier component to the body coil or the head coil by setting states of both switching devices.

摘要翻译： 一种用于在包括体线圈，头线圈和功率放大器部件的核磁共振成像系统中实现体线圈和头线圈之间的切换的方法，其中功率放大器部件包括功率放大器组，每组功率 放大器，包括由Wilkinson电路组合的功率放大器的通道，组合器，其被配置为组合来自所述功率放大器组的信号并将所述功率放大器组连接到所述体线圈;第一开关器件，包括被配置为接地的第一端子， 在威尔金森电路的电阻分支中串联连接的第二开关器件和位于第二开关器件与头部线圈之间的1/4波长变换传输线，该方法包括将功率放大器部件连接到体线圈或头部线圈 通过设置两个开关装置的状态。